Finding the Fourth Proportional to 74,172.44, 102,358.68 and 42,341.24
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Solution
The fourth proportional to 74,172.44, 102,358.68 and 42,341.24 is: 58,431.32
Step by Step Solution
- Step 1: Write the proportion equation
74,172.44 : 102,358.68 = 42,341.24 : x - Step 2: Convert to fraction form
74,172.44/102,358.68 = 42,341.24/x - Step 3: Cross multiply
74,172.44x = 102,358.68 × 42,341.24 - Step 4: Simplify right side
74,172.44x = 4,333,993,435.96 - Step 5: Solve for x
x = 4,333,993,435.96/74,172.44 - Step 6: Final answer
x = 58,431.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.